உணர்மானவியல் (Tamil Wikipedia)

Analysis of information sources in references of the Wikipedia article "உணர்மானவியல்" in Tamil language version.

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archive.org

Page 10 of Raymond Davis, Jr. and F. M. Walters, Jr., Scientific Papers of the Bureau of Standards, No. 439 (Part of Vol. 18) "Sensitometry of Photographic Emulsions and a Survey of the Characteristics of Plates and Films of American Manufacture," 1922.

Mees, C. E. Kenneth (May 1954). "L. A. Jones and his Work on Photographic Sensitometry". Image, Journal of Photography of George Eastman House (Rochester, N.Y.: International Museum of Photography at George Eastman House Inc.) III (5): 34–36. http://image.eastmanhouse.org/files/GEH_1954_03_05.pdf. பார்த்த நாள்: 15 July 2014.